Means for controlling temperature of lubricants



June 20, 1933 E. F, DXCKIESON, JR L Y MEANS FOR CONTROLLING TEMPERATUREOF LUBRICANTS Filed July 31, 1931 2 Sheets-Sheet l 3/ INVENTQR Edwardff'flzcka'es on, J'IT BY 4 CZ 19, %T ORNEY: M

June 3- E. F. DIGKIESON, JR 91 62 MEANS FOR CONTROLLING TEMPERATURE OFLUBRICANTS Filed July 51, 1931 2 Sheets-Sheet 2 WWW WI 6 0 r ff;INVENTOR TTORN 5Y5.

Patented June 20, 1933 1. UNITED s'raras i EDWARD F. DICKIESON, .nnorDETRoiT, Musician, ssIe'Noa TO shorten HQH'UNT, or

I DETROIT, MICHIGAN "MEANsroR CONTROLLING TETVIPEBATURE orLUBnIcAnrs 1Application filed nu si,

controlling the temperature of the lubricant] The principal objects ofthe invention are to provide a temperature governing arrangement in alubricating system or the like,which will maintain the lubricantat aproper temperature' and increase its efliciencyof operation; toprovide'anarrangement of this character which is simple in constructionand operation, and capable of lasting indefinitely without becomingdefective; to provide a mechanism by means of which an eficient flow ofheat to'or from the lubricant will be secured and the temperature of theentire body of the lubricant maintained in a proper manner; to provideanarrangement of the above designated character, which can be usedefliciently either in conjunction with air cooled motorsor-motors of thewater cooled type, andto'provide a method of efliciently controlling thetemperature of the lubricant.

For a completeunderstanding of the invention reference may be hadto theaccompanying drawings forming a part of the specification, whereinFigure 1 is a side view of a motor for a motor vehicle, with partsbroken away for the purpose of clarity, illustrating a mechanism whichis constructed according to one form of the invention;

Fig. 2 is a cross-sectional view on a larger scale, taken substantiallyalong line 2-2 of Fig. 1;

Fig. 3 is a cross-sectional view, taken substantially along line 33 ofFig. 2:

Fig. 4 is a cross-sectional view on a larger do scale, takensubstantially along line l4l of Fi 2;

. Fig. 5 is aside View of a motor of the air cooled type havingmechanism constructed according to one form of the invention, associatedtherewith;

" Fig. 6 is across-sectional view on a' larger 'ing system.

7 part 21'whicli asbest shown by Fig. 2, is sub- 1931. Serial No.554,233.

scale, taken substantially along line 6+6 of Fig.7 is a cross sectionalview, takensubstantially along line 7 7 of Fig. 6;

Fig. illustrates a' lubricant temperature controlling mechanismconstructed according to a different form of the invention;

struction. A motor of this character ordi- 'narily' has an 011 pan 11adapted to receive and retain oil used for lubricating moving parts,and, at the present time, a motor of i this type ordinarily is providedwith an oil pump indicated at 12 for circulating the oil under pressureto such moving parts that require oil. The form 01". pump illustrated,as shown best by Fig. 2, comprises intermesh- .ing gears 13 and 1 1which are driven by means of a shaft 15 rigidly connected to gear 14 forexample, and which in turn is driven by operative connection to a rotarypart of the motor. 'This pump has the usual inlet and outlet pipes 16and 17, and a strainer 18 associated withthe pipe 16ior preventingforeign substances from getting into the lubricat- Atone side, the pumpcasing indicated at 20 has a laterally pro ect1ng, hollow casingstantially circular in shape. As seen in Fig. 3, the part 21"has acentrally located solid portion 22' and an annular space 23 extendingaround the solid portion. The space 23 is adapted toreceive circulatingwater from 9 the water circulating system of the motor, and to conveywater to and from this space, conduits Q 1 and 25 are provided whichcommunicate with the space and respectively with conduits 27 and28 shownby Fig. 1, communicating with the water circulating system. By means ofthis arrangement, a flow of water throughthe space 23 is effectedWhilethe motor is operating. At this time it is desired to callattention to the fact that the temperature of such water ordinarily isnot more than 175 degrees Fahrenheit and hence the Water is relativelycool ascompared to thea threaded portion 33 threaded into-the solidportion 22 ofthe casing. This pinion has teeth 34 on its outerperiphery, which mesh with, as best shown by Fig. 2, a pinion 35 on theshaft 15 of the pump mechanism, located above the gear. 14 and upon thatpart of the pump casing, housing the latter pinion. The pinion 30 isopenfrom its periphery to its center, with the exception of spokes35interconnecting these parts of the pinion, and each spokesv are directedarcuately thereby providing a convex-side edge 36 and a concave sideedge 37. vThe upper surface of the casing 21, indicated at 37 lies in a.horizontal plane and normallyis submerged'inthe oil in oil pan 11; Asbest shown by Fig. 4, each 7 of the spokes 35; has its convex side "edgeslightly inclinedfto the vertical as indicated at 88 while the lowersurface of the spoke lies in a horizontal plane substantially in contactwith the upper surface of the casing 21.

Forsecuring an added cooling effect, the

casing part 21 has vertical apertures 38? ar ranged in spacedc1rcumferent1al relation around the solid portion 22 and oil flowingthrough such apertures contacts with walls around-said openings which"are cooled by I the water.

Such openings will constantly; be filled with oil which will be cooledby the water.

When the pump is operating, the pinion 30 will be rotated in thedirection indicated by the arrow thereon in F 2, and when so rotated theconvex side edge 36 of the spoke will be ahead of the concave side It isapparent that the lower forward edge of each spoke will scrape the oilfrom the uppersurface 37 of casing 21, and owing to the convex formationof the forward side edge of each spoke, such oil scraped away will bemoved toward the outer periphery of the casing and finally be forcedaway from such surface. Oil above the oil thus scraped away immediatelywill orcupy thespace from which the latter oil has been removed and inturn such oil will be scraped away by the'succeeding spokes. In view ofthe fact that the upper surface37 of casing 21 defines the upper wall ofthe water space23, the heatfrom the oil thereon will be rapidlyconducted through palaces such wall, and'absorbed by the relatively coolwater in the space 23. The circulating water ture of the water and sincethis temperature is much lower than the oil in the pan 11, heat from theoil will rapidly flow through such wall and be absorbed by the water. Ifa layer of oil were allowed to remain on the upper surface 37 of thecasing 21, it would become relatively cool because the heat thereinwould be absorbed by the water, but such layer would tend to stick tothe surface and would interfere with the flow of heat from the remainingoil through the upper wall of the casing and to the water. The scrapingmeans or spokes 38 (2011Su2b11t13 remove by scraping action, this layerof relatively cool oil and force i into the remaining body of oil and asa result of this operation,cool oil is repeatedly being scraped away:from'the up- 'ier surface of the casing by the spokes and oil ofrelatively high temperature is deposited on such surface. A moreuniform. flow of heat is eil'ected in this manner, from the-oil to thewater and it is therefore possible to maintain the temperature of theoil at a'much lower temperature which is highly desirable.

The arrangement shown by Figsr5, 6 and 7 is similar to that previouslydescribed. ex cept' that the cooling mechanism is adapted for an aircooled engine indicated at 40 in Fig. 5. In this construction the oilpan is indicated at 41 and as best shown by Fig. 7 at one point the panis provided with heat radiating fins 42. The oil pump in thisconstruction is substantially identical to that previously described andis indicated by the same numeral 12. The pumpcasing is provided with alaterally ofiset bracket portion 43 which at its outer end isprovidedwith a bolt 44 on the lower end of which a pinion 45 is provided whichis substantially identical to the pinion 30 shown in the previousfigures. It will be noted thatthelower end of the bolt 44 seats in arecess 46 in the lower side of the groove andis substantially in contactwith the innersurfaee of the oil pan part adjacent the fins 42. Thelower side of pinion 45 substantially contacts with the upper surface ofthe oil pan portion having the fins 42 and as in the previousconstruction, the pinion is provided with scraping spokes adapted toscrape the oil from the upper surface of the oil pan. At is apparentthat relatively cool oil, cooled by the rapid V dissipation of heat fromthe fins 42 outwardly of the oily pan, will be scraped awayand replacedby relatively warm oil and this operation repeatedly is performed andthe temperature of the oil uniformly reduced as a result thereof. W I

In the construction shown by FiggS, the oil pump is indicated at 50 andis held in a suspended position inthe oil panindicated at and allowingother oil to be deposited in place thereof. 7

In combination, angoil receptacle, said receptacle having anoil engagingsurface therein, which is exposed to amedium having a. differenttemperature as compared" to. the temperature of the oil, for affectingthe tem perature of said surface, andd'riven means for repeatedlyremoving the layer of oil on said surface andlallo'wing other oil to bedeposited in place thereof, said means including a'scraping elementdisposed closely adjacent tosa-id surface. 1

.f6.In combination,: an oil receptacle, said receptacle, having an oilengaging surface therein, which is cxposedto a medium. havmotor, saidreceptacle having an oil engagng surfacerthere1n,-wh1ch 1s exposed to amedium having a different temperature as compared to .theoiltemperature, for affecting thetemperature of the surface, and arotary element for repeatedly removing the layer of oil on said surfaceand allowing other oil to be deposited in place..thereof, -said rotaryelement having a scraping edge substantially'contacting with saidsurface.

s 8. In combination, a'member having an oil engaging surface therein,whichis exposed to a medium having a relatively low temperature ascompa-redto that of the oil affecting the temperature of said surface,and mechanicallyoperated means for positively engaging and repeatedlyremovingthe layer ofoil on said surface andv allowing other oil to bedeposited in place'thereof.

" 9. Incombination, an 'oil receptacle, said receptacle having an oilengaging surface therein, which. is exposed to a medium having adifferent temperature] as compared to the temperature. of the oil foraffecting. the temperature of said surface," and rotary means forrepeatedly removing the layer of oil on said surfaceand. allowing otheroil to be deposited in place thereof, said means including one ormorescraping elements extending in a general, radial direction and'havingsubstantial contact with said surface for the purpose of scraping theoil therefrom. r

--10. Incombination, an oil receptacle, said receptacle" having an 'oilengaging surface therein, which is exposed to a medium having'adiflerent temperature as compared to the temperature 'of'the oilfor-affecting the temperature of-said surface and-rotary means for'removing the layer of oil from said surface,

said means including one or more scraping elements having an arcuatescraplng edge for scraping theoil from theinner surface of said.-surface and simultaneously causing movement of the oil ,relative to theelement.

11. In combination; an oil receptacle, said receptacle having an oilengaging surface therein, which is exposed to amedium having a differenttemperature as compared to the temperature of the oil for affecting thetemperature of said surface, and a driven element for repeatedlyscraping the layer of oil from said surface, saidelement havingapertures for allowing the oil to pass therethrough and be deposited onsaid surface.

12. Incombination, an oil receptacle,-said' receptacle having I211} oilengaging surface, which is-exposed to a medium having a differenttemperature, as compared to that of the oil .foraii'ecting thetemperature of said surface,means forscraping the oil from said surface,and means for positively drawing oil to such surface after each layer ofoil is scraped away.

13. In combination, an oil receptacle, said receptacle having a plateportion which constitutes a wall of a receptacle separate of the oilreceptacle, means for, circulatinga fluid having a different temperaturefrom that of the oil through the receptacle, and means for scraping theoil from the: oil surface of said plate and allowing other oil to bedeposited thereon.

14.. In combination, an oil receptacle for a motor, said receptaclehaving a wall the outer surface of which is provided with heat conducting fins, and means for scraping the oil from the' inner surface ofsaid wall and allowing, other oil to be deposited in place thereof.

15. In-combination, an oil receptacle, said receptacle having a plateportion which constitutes one wall of a water rece tacle, means forcirculating water through the last recep-. tacle, and means forrepeatedly scraping the oil fromthe oil surface of said plate and aliowing other oil to be deposited on said surace. V I 16. Inv combination,an oil receptacle for a motor of the air cooled type, said receptaclehaving a 'wall, the outersurface of which is provided with heatconducting fins, and mechanically operated means for positively engaging and repeatedly removing the layerof oil from the inner surface ofsaid wall and allowing other oil to be deposited in place thereof. 17.In combination, an oil receptacle, an oil pump in said receptacle, saidreceptacle having a surface, which is exposed. to a medium having adifferent temperature as compared to that of the oil, forafi'ecting thetemperature of the surface, scraping means for repeatedly removing'thelayer of oil'from said surface and allowing other oil to be deposited inplace thereof and common means for operating the oil pump and scrapingmeans.

18. In combinatioman oil receptacle for a motor said receptacle having awallQwhich is exposed to a medium having a different temperature ascompared to that of the oil, an'oil pump in said receptacle, and drivenmeans having one or more elements substantially contacting with theinner surface of said Wall and adapted to scrape the oil therefrom, saidmeans being driven by the oil pump,

EDWARD F. DICKIESOR-JRL

